Comparison

Euclidea vs 4=10

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Euclidea

Engage in geometric construction puzzles based on Euclidean principles. Solve increasingly difficult challenges using innovative tools, with options to explore, get hints, and compete with friends. Unlock new levels by earning stars or purchase an in-app item to remove restrictions.

Highlights
  • 156 geometric puzzle levels
  • 10 innovative construction tools
  • Explore mode with hints
  • Dynamic drag, zoom, and pan interface
  • Game Center competition
  • Unlockable tools and shortcuts
Features
Read full description

Euclidea is geometrical puzzles based on classical Euclidian constructions. > 156 Levels: from very easy to really hard > 10 Innovative Tools > "Explore" Mode and Hints > Easily Drag, Zoom & Pan > Compete with Friends via the Game Center > No Advertising! New levels are unlocked as you solve the previous ones. You can complete the whole game only if you earn all the stars (L, E, and V). But you can buy an IAP that removes this restriction. Find more useful hints on Euclidea on our site: https://www.euclidea.xyz/faq. “Euclidea has been shown to help with imagination, intuition, and logic, all wonderful skills to develop.” – appPicker “Euclidea is an absolute joy to play…it’s a game that every math student should have and, in an ideal world, every adult should like.” – Non-Trivial Games ***About Euclidea*** Euclidea is a brilliantly original way to learn about, explore and have fun with Euclidian Constructions! Your task is to solve interesting challenges by building geometric constructions with a straightedge and compass. If you design the most elegantly simple solutions in the least number of moves, you’ll earn the highest scores. Solutions are scored in lines (L) and elementary Euclidean constructions (E). ***Start Simple and Get Smarter!*** Don’t worry if you aren’t a math wizard. Euclidea starts out with simple challenges that guide you through the basics. Once you master the fundamentals, you’ll move on to tougher, more mind-bending challenges such as inner/outer tangents, regular polygons, and more. There are 120 unique challenges in total, which are organized in packs for simpler navigation. ***Add Constructions to Your Interface*** When you learn certain significant constructions – such as angle bisectors, non-collapsing compass, and so on – they are automatically added to the Euclidea interface’s shortcut, which helps you save time and allows you to create clean, uncluttered drawings. ***Easily Drag, Pan & Zoom*** Euclidea-created constructions are completely dynamic. As such, you can drag to adjust angles, lines, radii and so on. You can also easily zoom and pan. This not only makes the experience more interactive, but it allows you to more deeply grasp the relationships between geometric elements, explore various possibilities, and analyze errors. ***Instant, Automatic Precision*** Don’t worry about spending time or effort trying to achieve perfect precision, because Euclidea automatically handles that task by pinning points, lines and circles to the app’s clean interface. ***Compete with Friends*** Who said that math isn’t a competitive sport? Challenge your friends to see who can come up with the most elegant solutions, and track your achievements and rankings via the Game Center. ***Additional Special Features*** > A helpful “Explore” mode that allows you to see the figure you need to construct > An inventory of tools that you create as you progress – you’ll need these to solve future challenges > Some challenges can be solved in more than one way, which means you can try a different approach and have even more fun ***Questions? Comments? Send in your inquiries and stay up-to-date on the latest Euclidea news at https://www.euclidea.xyz/

About

4=10

A casual number puzzle game for all ages. Combine four given numbers using basic math operations to reach the target of 10. It offers a relaxing experience that improves mental math skills and number familiarity.

Highlights
  • Combine four numbers to equal 10
  • Basic math operations
  • Gradually increasing difficulty
  • One-handed play
  • Improves mental math skills
  • Relaxing and soothing gameplay
Features
Read full description

4=10 is a simple number puzzle game suitable for all ages. The objective is to use four given numbers and combine them in an expression that equals 10. For example, you can solve it by adding 1, 2, 3, and 4 together (1+2+3+4=10). The game relies on basic math operations and starts off easy, gradually increasing in difficulty. It's designed to be a relaxed and soothing experience. You can play it with just one hand, using your phone whenever and wherever you like. By playing this game, you'll become more comfortable with numbers and improve your basic math skills, including mental calculations, using parentheses, and following the correct order of operations. Enjoy the game and happy calculating! :)

Screenshots

Euclidea4 screens
4=104 screens

Verdict

The call

Euclidea and 4=10 both sit at 4.8 stars, but that hides the real split: 98% of 4=10's written reviews are positive against 86% of Euclidea's. 4=10 also leads on update cadence (every 2 months vs every 3 months). Euclidea's advantage is iOS requirement (8.0 vs 12.0). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Euclidea sells 6 one-off in-app purchases and 4=10 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Euclidea against 4.9 for 4=10. Both are backed by a comparable volume of ratings — 937 and 2.6K respectively. Written reviews are what separate them: 86% of Euclidea's written reviews are positive against 98% of 4=10's.

UpkeepUpdate frequency

Euclidea ships an update every 3 months, 4=10 every 2 months. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
Euclidea versus 4=10: the parameters behind the verdict, then further details
ParameterEuclidea4=10
PriceFreeFree
Rating4.8 (937 ratings)4.9 (2.6K ratings) — better
Positive reviews86.4% of reviews97.9% of reviews — better
Number of ratings9372.6K — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size223 MB33 MB
Age rating4+4+
DeveloperHORIS INTERNATIONAL LIMITEDSveinn Steinarsson

Customer experience

Euclidea

All ratings931 ratings
Positive96.5%
Neutral1.2%
Negative2.4%
Written reviews396 reviews
Positive86.4%
Neutral3.5%
Negative10.1%

4=10

All ratings2,644 ratings
Positive99.4%
Neutral0.3%
Negative0.3%
Written reviews377 reviews
Positive97.9%
Neutral1.3%
Negative0.8%

User reviews

Euclidea

From 937 App Store ratings

What we love

  • 🚀 Excellent interface
  • 🚀 Smooth controls
  • 👍 Challenging and engaging puzzles
  • 👍 Helps learn and improve geometry skills
  • 👍 No ads or in-app purchases

Room to improve

  • 🐛 App crashes on launch for some users
  • 🐛 Circle tool not snapping to points properly
  • 🐛 Solutions not always accepted even when correct
  • 🔒 Locked levels require in-app purchases to access

4=10

From 2.6K App Store ratings

What we love

  • 👍 Simple and fun
  • 🧠 Helps improve math skills
  • 🔒 No ads or in-app purchases
  • 💡 Challenging yet relaxing

Room to improve

  • 🤔 Some levels too easy
  • 🤯 Can get repetitive at times

Bugs and requests

Euclidea

Reported bugs

3 issues
  • App crashing on launch
  • Circle tool not snapping to points
  • Solutions not being accepted correctly

Requested features

5 requests
  • Offline mode support
  • Ability to mark points on free draw
  • Protractor feature
  • More supplemental educational content
  • Ability to see when multiple solutions exist

4=10

Reported bugs

1 issue
  • None reported

Requested features

2 requests
  • Add more difficulty levels
  • Introduce new gameplay modes

In-app purchases

6 purchases

Euclidea

One-time6
  • Unlock the Rest Levels$0.99
  • Unlock the Rest Hints$0.99
  • Thanks to developers$0.99
Show 3 more
  • Night Mode$0.99
  • Many thanks to developers$4.99
  • Many, many thanks to developers$49.99
1 purchases

4=10

One-time1
  • 4≠10 add-on$3.99

Questions

Is Euclidea free?
Euclidea is free to download, with in-app purchases available.
Is 4=10 free?
4=10 is free to download, with in-app purchases available.
Which has better reviews, Euclidea or 4=10?
4=10 is rated higher. Euclidea averages 4.8 out of 5 from 937 ratings, while 4=10 averages 4.9 from 2.6K ratings.
Do Euclidea or 4=10 have ads?
Neither Euclidea nor 4=10 shows ads.
Which is updated more often, Euclidea or 4=10?
Euclidea ships an update every 3 months, and 4=10 every 2 months. Most recently, Euclidea was updated on October 20, 2026 and 4=10 on October 17, 2026.

Other comparisons